Honeywell FC-SCNT02 S300 Safety Counter Module SIL3

Product Overview

The Honeywell FC-SCNT02 is a Safety Counter Module providing 2 channels of high-speed counting for Honeywell Safety Manager systems. Designed for safety-critical applications requiring precise event counting, frequency measurement, or pulse accumulation, this module interfaces with encoders, flow meters, turbine meters, and other pulse-generating devices with SIL-rated integrity.

Key Features

• 2 Counter Channels: High-speed pulse counting for safety applications
• Multiple Count Modes: Up/down counting, frequency measurement, pulse accumulation
• High-Speed Input: Fast response for high-frequency pulse signals
• Galvanic Isolation: Isolated inputs protect against field transients
• Status LEDs: Per-channel count status and diagnostic indicators
• SIL Rated: Certified for safety instrumented systems

Technical Specifications

• Model: FC-SCNT02
• Type: Safety Counter Module
• Channels: 2 counter inputs
• Input Type: Pulse, encoder, frequency
• Count Frequency: High-speed (refer to system documentation for max frequency)
• Count Modes: Up, down, up/down, frequency, pulse accumulation
• Input Voltage: 24 VDC (typical)
• Isolation: Galvanic isolation per channel
• Module Width: 4 TE (20.32 mm / 0.8 in)
• Power Requirements: 5 VDC and 24 VDC (refer to system documentation)
• Operating Temperature: -40°C to +70°C
• Approvals: CE, TÜV, UL, CSA, FM

Installation Guide

1. Chassis Insertion: Slide module into designated slot; secure with screws
2. Flat Cable: Connect to horizontal IO bus
3. Field Wiring: Use compatible FTA for pulse device connection
4. Encoder Connection: For quadrature encoders, connect A and B phase signals
5. Configuration: Set count mode, preset values, and alarm thresholds via Safety Manager software

FAQ

Q: What types of devices can connect to this module?
A: Encoders (incremental), flow meters (turbine, paddle wheel), proximity switches used as pulse generators, and any device providing discrete pulse signals.

Q: Can this module measure frequency?
A> Yes, the FC-SCNT02 supports frequency measurement mode in addition to pulse counting.

Q: What is the maximum count frequency?
A> Maximum frequency depends on input signal characteristics and module configuration. Refer to Safety Manager documentation for specific ratings.

Selection Tips

• Use for safety applications requiring pulse counting or frequency measurement
• Verify pulse signal voltage and frequency compatibility
• For quadrature encoders, ensure both A and B phases are connected
• Consider redundant counter modules for SIL 3 frequency monitoring applications